tge/engine/game/trigger.cc
2017-04-17 06:17:10 -06:00

664 lines
19 KiB
C++
Executable File

//-----------------------------------------------------------------------------
// Torque Game Engine
// Copyright (C) GarageGames.com, Inc.
//-----------------------------------------------------------------------------
#include "sceneGraph/sceneState.h"
#include "dgl/dgl.h"
#include "dgl/gTexManager.h"
#include "console/consoleTypes.h"
#include "collision/boxConvex.h"
#include "core/bitStream.h"
#include "math/mathIO.h"
#include "game/trigger.h"
//-----------------------------------------------------------------------------
ConsoleMethod( TriggerData, onEnterTrigger, void, 4, 4, "( Trigger t, SimObject intruder)")
{
Trigger* trigger = NULL;
if (Sim::findObject(argv[2], trigger) == false)
return;
// Do nothing with the trigger object id by default...
SimGroup* pGroup = trigger->getGroup();
for (SimGroup::iterator itr = pGroup->begin(); itr != pGroup->end(); itr++)
Con::executef(*itr, 3, "onTrigger", Con::getIntArg(trigger->getId()), "1");
}
ConsoleMethod( TriggerData, onLeaveTrigger, void, 4, 4, "( Trigger t, SimObject intruder)")
{
Trigger* trigger = NULL;
if (Sim::findObject(argv[2], trigger) == false)
return;
if (trigger->getNumTriggeringObjects() == 0) {
SimGroup* pGroup = trigger->getGroup();
for (SimGroup::iterator itr = pGroup->begin(); itr != pGroup->end(); itr++)
Con::executef(*itr, 3, "onTrigger", Con::getIntArg(trigger->getId()), "0");
}
}
ConsoleMethod( TriggerData, onTickTrigger, void, 3, 3, "(Trigger t)")
{
Trigger* trigger = NULL;
if (Sim::findObject(argv[2], trigger) == false)
return;
// Do nothing with the trigger object id by default...
SimGroup* pGroup = trigger->getGroup();
for (SimGroup::iterator itr = pGroup->begin(); itr != pGroup->end(); itr++)
Con::executef(*itr, 2, "onTriggerTick", Con::getIntArg(trigger->getId()));
}
ConsoleMethod( Trigger, getNumObjects, S32, 2, 2, "")
{
return object->getNumTriggeringObjects();
}
ConsoleMethod( Trigger, getObject, S32, 3, 3, "(int idx)")
{
S32 index = dAtoi(argv[2]);
if (index >= object->getNumTriggeringObjects() || index < 0)
return -1;
else
return object->getObject(U32(index))->getId();
}
//----------------------------------------------------------------------------
IMPLEMENT_CO_DATABLOCK_V1(TriggerData);
TriggerData::TriggerData()
{
tickPeriodMS = 100;
}
bool TriggerData::onAdd()
{
if (!Parent::onAdd())
return false;
return true;
}
void TriggerData::initPersistFields()
{
Parent::initPersistFields();
addField("tickPeriodMS", TypeS32, Offset(tickPeriodMS, TriggerData));
}
//--------------------------------------------------------------------------
void TriggerData::packData(BitStream* stream)
{
Parent::packData(stream);
stream->write(tickPeriodMS);
}
void TriggerData::unpackData(BitStream* stream)
{
Parent::unpackData(stream);
stream->read(&tickPeriodMS);
}
//--------------------------------------------------------------------------
IMPLEMENT_CO_NETOBJECT_V1(Trigger);
Trigger::Trigger()
{
// Don't ghost by default.
mNetFlags.clear(Ghostable);
mTypeMask |= TriggerObjectType;
mObjScale.set(1, 1, 1);
mObjToWorld.identity();
mWorldToObj.identity();
mDataBlock = NULL;
mLastThink = 0;
mCurrTick = 0;
mConvexList = new Convex;
}
Trigger::~Trigger()
{
delete mConvexList;
mConvexList = NULL;
}
bool Trigger::castRay(const Point3F &start, const Point3F &end, RayInfo* info)
{
// Collide against bounding box
F32 st,et,fst = 0,fet = 1;
F32 *bmin = &mObjBox.min.x;
F32 *bmax = &mObjBox.max.x;
F32 const *si = &start.x;
F32 const *ei = &end.x;
for (int i = 0; i < 3; i++)
{
if (*si < *ei)
{
if (*si > *bmax || *ei < *bmin)
return false;
F32 di = *ei - *si;
st = (*si < *bmin)? (*bmin - *si) / di: 0;
et = (*ei > *bmax)? (*bmax - *si) / di: 1;
}
else
{
if (*ei > *bmax || *si < *bmin)
return false;
F32 di = *ei - *si;
st = (*si > *bmax)? (*bmax - *si) / di: 0;
et = (*ei < *bmin)? (*bmin - *si) / di: 1;
}
if (st > fst) fst = st;
if (et < fet) fet = et;
if (fet < fst)
return false;
bmin++; bmax++;
si++; ei++;
}
info->normal = start - end;
info->normal.normalizeSafe();
getTransform().mulV( info->normal );
info->t = fst;
info->object = this;
info->point.interpolate(start,end,fst);
info->material = 0;
return true;
}
//--------------------------------------------------------------------------
/* Console polyhedron data type exporter
The polyhedron type is really a quadrilateral and consists of a corner
point follow by three vectors representing the edges extending from the
corner.
*/
ConsoleType( TriggerPolyhedron, TypeTriggerPolyhedron, sizeof(Polyhedron) )
ConsoleGetType( TypeTriggerPolyhedron )
{
U32 i;
Polyhedron* pPoly = reinterpret_cast<Polyhedron*>(dptr);
// First point is corner, need to find the three vectors...`
Point3F origin = pPoly->pointList[0];
U32 currVec = 0;
Point3F vecs[3];
for (i = 0; i < pPoly->edgeList.size(); i++) {
const U32 *vertex = pPoly->edgeList[i].vertex;
if (vertex[0] == 0)
vecs[currVec++] = pPoly->pointList[vertex[1]] - origin;
else
if (vertex[1] == 0)
vecs[currVec++] = pPoly->pointList[vertex[0]] - origin;
}
AssertFatal(currVec == 3, "Internal error: Bad trigger polyhedron");
// Build output string.
char* retBuf = Con::getReturnBuffer(1024);
dSprintf(retBuf, 1023, "%7.7f %7.7f %7.7f %7.7f %7.7f %7.7f %7.7f %7.7f %7.7f %7.7f %7.7f %7.7f",
origin.x, origin.y, origin.z,
vecs[0].x, vecs[0].y, vecs[0].z,
vecs[2].x, vecs[2].y, vecs[2].z,
vecs[1].x, vecs[1].y, vecs[1].z);
return retBuf;
}
/* Console polyhedron data type loader
The polyhedron type is really a quadrilateral and consists of an corner
point follow by three vectors representing the edges extending from the
corner.
*/
ConsoleSetType( TypeTriggerPolyhedron )
{
if (argc != 1) {
Con::printf("(TypeTriggerPolyhedron) multiple args not supported for polyhedra");
return;
}
Point3F origin;
Point3F vecs[3];
U32 numArgs = dSscanf(argv[0], "%g %g %g %g %g %g %g %g %g %g %g %g",
&origin.x, &origin.y, &origin.z,
&vecs[0].x, &vecs[0].y, &vecs[0].z,
&vecs[1].x, &vecs[1].y, &vecs[1].z,
&vecs[2].x, &vecs[2].y, &vecs[2].z);
if (numArgs != 12) {
Con::printf("Bad polyhedron!");
return;
}
Polyhedron* pPoly = reinterpret_cast<Polyhedron*>(dptr);
pPoly->pointList.setSize(8);
pPoly->pointList[0] = origin;
pPoly->pointList[1] = origin + vecs[0];
pPoly->pointList[2] = origin + vecs[1];
pPoly->pointList[3] = origin + vecs[2];
pPoly->pointList[4] = origin + vecs[0] + vecs[1];
pPoly->pointList[5] = origin + vecs[0] + vecs[2];
pPoly->pointList[6] = origin + vecs[1] + vecs[2];
pPoly->pointList[7] = origin + vecs[0] + vecs[1] + vecs[2];
Point3F normal;
pPoly->planeList.setSize(6);
mCross(vecs[2], vecs[0], &normal);
pPoly->planeList[0].set(origin, normal);
mCross(vecs[0], vecs[1], &normal);
pPoly->planeList[1].set(origin, normal);
mCross(vecs[1], vecs[2], &normal);
pPoly->planeList[2].set(origin, normal);
mCross(vecs[1], vecs[0], &normal);
pPoly->planeList[3].set(pPoly->pointList[7], normal);
mCross(vecs[2], vecs[1], &normal);
pPoly->planeList[4].set(pPoly->pointList[7], normal);
mCross(vecs[0], vecs[2], &normal);
pPoly->planeList[5].set(pPoly->pointList[7], normal);
pPoly->edgeList.setSize(12);
pPoly->edgeList[0].vertex[0] = 0; pPoly->edgeList[0].vertex[1] = 1; pPoly->edgeList[0].face[0] = 0; pPoly->edgeList[0].face[1] = 1;
pPoly->edgeList[1].vertex[0] = 1; pPoly->edgeList[1].vertex[1] = 5; pPoly->edgeList[1].face[0] = 0; pPoly->edgeList[1].face[1] = 4;
pPoly->edgeList[2].vertex[0] = 5; pPoly->edgeList[2].vertex[1] = 3; pPoly->edgeList[2].face[0] = 0; pPoly->edgeList[2].face[1] = 3;
pPoly->edgeList[3].vertex[0] = 3; pPoly->edgeList[3].vertex[1] = 0; pPoly->edgeList[3].face[0] = 0; pPoly->edgeList[3].face[1] = 2;
pPoly->edgeList[4].vertex[0] = 3; pPoly->edgeList[4].vertex[1] = 6; pPoly->edgeList[4].face[0] = 3; pPoly->edgeList[4].face[1] = 2;
pPoly->edgeList[5].vertex[0] = 6; pPoly->edgeList[5].vertex[1] = 2; pPoly->edgeList[5].face[0] = 2; pPoly->edgeList[5].face[1] = 5;
pPoly->edgeList[6].vertex[0] = 2; pPoly->edgeList[6].vertex[1] = 0; pPoly->edgeList[6].face[0] = 2; pPoly->edgeList[6].face[1] = 1;
pPoly->edgeList[7].vertex[0] = 1; pPoly->edgeList[7].vertex[1] = 4; pPoly->edgeList[7].face[0] = 4; pPoly->edgeList[7].face[1] = 1;
pPoly->edgeList[8].vertex[0] = 4; pPoly->edgeList[8].vertex[1] = 2; pPoly->edgeList[8].face[0] = 1; pPoly->edgeList[8].face[1] = 5;
pPoly->edgeList[9].vertex[0] = 4; pPoly->edgeList[9].vertex[1] = 7; pPoly->edgeList[9].face[0] = 4; pPoly->edgeList[9].face[1] = 5;
pPoly->edgeList[10].vertex[0] = 5; pPoly->edgeList[10].vertex[1] = 7; pPoly->edgeList[10].face[0] = 3; pPoly->edgeList[10].face[1] = 4;
pPoly->edgeList[11].vertex[0] = 7; pPoly->edgeList[11].vertex[1] = 6; pPoly->edgeList[11].face[0] = 3; pPoly->edgeList[11].face[1] = 5;
}
//-----------------------------------------------------------------------------
void Trigger::initPersistFields()
{
Parent::initPersistFields();
addField("polyhedron", TypeTriggerPolyhedron, Offset(mTriggerPolyhedron, Trigger));
}
//--------------------------------------------------------------------------
bool Trigger::onAdd()
{
if(!Parent::onAdd())
return false;
Con::executef(this, 2, "onAdd", Con::getIntArg(getId()));
Polyhedron temp = mTriggerPolyhedron;
setTriggerPolyhedron(temp);
addToScene();
return true;
}
void Trigger::onRemove()
{
Con::executef(this, 2, "onRemove", Con::getIntArg(getId()));
mConvexList->nukeList();
removeFromScene();
Parent::onRemove();
}
bool Trigger::onNewDataBlock(GameBaseData* dptr)
{
mDataBlock = dynamic_cast<TriggerData*>(dptr);
if (!mDataBlock || !Parent::onNewDataBlock(dptr))
return false;
scriptOnNewDataBlock();
return true;
}
void Trigger::onDeleteNotify(SimObject* obj)
{
GameBase* pScene = dynamic_cast<GameBase*>(obj);
if (pScene != NULL)
{
for (U32 i = 0; i < mObjects.size(); i++)
{
if (pScene == mObjects[i])
{
mObjects.erase(i);
Con::executef(mDataBlock, 3, "onLeaveTrigger", scriptThis(), Con::getIntArg(pScene->getId()));
break;
}
}
}
Parent::onDeleteNotify(obj);
}
void Trigger::onEditorEnable()
{
// Enable scoping so we can see this thing on the client.
mNetFlags.set(Ghostable);
setScopeAlways();
}
void Trigger::onEditorDisable()
{
// Disable scoping so we can see this thing on the client
mNetFlags.clear(Ghostable);
clearScopeAlways();
}
//--------------------------------------------------------------------------
void Trigger::buildConvex(const Box3F& box, Convex* convex)
{
// These should really come out of a pool
mConvexList->collectGarbage();
Box3F realBox = box;
mWorldToObj.mul(realBox);
realBox.min.convolveInverse(mObjScale);
realBox.max.convolveInverse(mObjScale);
if (realBox.isOverlapped(getObjBox()) == false)
return;
// Just return a box convex for the entire shape...
Convex* cc = 0;
CollisionWorkingList& wl = convex->getWorkingList();
for (CollisionWorkingList* itr = wl.wLink.mNext; itr != &wl; itr = itr->wLink.mNext) {
if (itr->mConvex->getType() == BoxConvexType &&
itr->mConvex->getObject() == this) {
cc = itr->mConvex;
break;
}
}
if (cc)
return;
// Create a new convex.
BoxConvex* cp = new BoxConvex;
mConvexList->registerObject(cp);
convex->addToWorkingList(cp);
cp->init(this);
mObjBox.getCenter(&cp->mCenter);
cp->mSize.x = mObjBox.len_x() / 2.0f;
cp->mSize.y = mObjBox.len_y() / 2.0f;
cp->mSize.z = mObjBox.len_z() / 2.0f;
}
//------------------------------------------------------------------------------
void Trigger::setTransform(const MatrixF & mat)
{
Parent::setTransform(mat);
if (isServerObject()) {
MatrixF base(true);
base.scale(Point3F(1.0/mObjScale.x,
1.0/mObjScale.y,
1.0/mObjScale.z));
base.mul(mWorldToObj);
mClippedList.setBaseTransform(base);
setMaskBits(GameBase::InitialUpdateMask);
}
}
void Trigger::setTriggerPolyhedron(const Polyhedron& rPolyhedron)
{
mTriggerPolyhedron = rPolyhedron;
if (mTriggerPolyhedron.pointList.size() != 0) {
mObjBox.min.set(1e10, 1e10, 1e10);
mObjBox.max.set(-1e10, -1e10, -1e10);
for (U32 i = 0; i < mTriggerPolyhedron.pointList.size(); i++) {
mObjBox.min.setMin(mTriggerPolyhedron.pointList[i]);
mObjBox.max.setMax(mTriggerPolyhedron.pointList[i]);
}
} else {
mObjBox.min.set(-0.5, -0.5, -0.5);
mObjBox.max.set( 0.5, 0.5, 0.5);
}
MatrixF xform = getTransform();
setTransform(xform);
mClippedList.clear();
mClippedList.mPlaneList = mTriggerPolyhedron.planeList;
// for (U32 i = 0; i < mClippedList.mPlaneList.size(); i++)
// mClippedList.mPlaneList[i].neg();
MatrixF base(true);
base.scale(Point3F(1.0/mObjScale.x,
1.0/mObjScale.y,
1.0/mObjScale.z));
base.mul(mWorldToObj);
mClippedList.setBaseTransform(base);
}
//--------------------------------------------------------------------------
bool Trigger::testObject(GameBase* enter)
{
if (mTriggerPolyhedron.pointList.size() == 0)
return false;
mClippedList.clear();
SphereF sphere;
sphere.center = (mWorldBox.min + mWorldBox.max) * 0.5;
VectorF bv = mWorldBox.max - sphere.center;
sphere.radius = bv.len();
enter->buildPolyList(&mClippedList, mWorldBox, sphere);
return mClippedList.isEmpty() == false;
}
void Trigger::potentialEnterObject(GameBase* enter)
{
AssertFatal(isServerObject(), "Error, should never be called on the client!");
for (U32 i = 0; i < mObjects.size(); i++) {
if (mObjects[i] == enter)
return;
}
if (testObject(enter) == true) {
mObjects.push_back(enter);
deleteNotify(enter);
Con::executef(mDataBlock, 3, "onEnterTrigger", scriptThis(), Con::getIntArg(enter->getId()));
}
}
void Trigger::processTick(const Move* move)
{
Parent::processTick(move);
if (isClientObject())
return;
//
if (mObjects.size() == 0)
return;
if (mLastThink + mDataBlock->tickPeriodMS < mCurrTick) {
mCurrTick = 0;
mLastThink = 0;
for (S32 i = S32(mObjects.size() - 1); i >= 0; i--) {
if (testObject(mObjects[i]) == false) {
GameBase* remove = mObjects[i];
mObjects.erase(i);
clearNotify(remove);
Con::executef(mDataBlock, 3, "onLeaveTrigger", scriptThis(), remove->scriptThis());
}
}
if (mObjects.size() != 0)
Con::executef(mDataBlock, 2, "onTickTrigger", scriptThis());
} else {
mCurrTick += TickMs;
}
}
//--------------------------------------------------------------------------
bool Trigger::prepRenderImage(SceneState* state, const U32 stateKey,
const U32 /*startZone*/, const bool /*modifyBaseState*/)
{
if (isLastState(state, stateKey))
return false;
setLastState(state, stateKey);
// This should be sufficient for most objects that don't manage zones, and
// don't need to return a specialized RenderImage...
if (state->isObjectRendered(this)) {
SceneRenderImage* image = new SceneRenderImage;
image->obj = this;
image->isTranslucent = true;
image->sortType = SceneRenderImage::Point;
state->insertRenderImage(image);
}
return false;
}
void Trigger::renderObject(SceneState* state, SceneRenderImage*)
{
AssertFatal(dglIsInCanonicalState(), "Error, GL not in canonical state on entry");
RectI viewport;
glMatrixMode(GL_PROJECTION);
glPushMatrix();
dglGetViewport(&viewport);
// Uncomment this if this is a "simple" (non-zone managing) object
state->setupObjectProjection(this);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
dglMultMatrix(&mObjToWorld);
glScalef(mObjScale.x, mObjScale.y, mObjScale.z);
mTriggerPolyhedron.render();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
dglSetViewport(viewport);
AssertFatal(dglIsInCanonicalState(), "Error, GL not in canonical state on exit");
}
//--------------------------------------------------------------------------
U32 Trigger::packUpdate(NetConnection* con, U32 mask, BitStream* stream)
{
U32 i;
U32 retMask = Parent::packUpdate(con, mask, stream);
// Note that we don't really care about efficiency here, since this is an
// edit-only ghost...
stream->writeAffineTransform(mObjToWorld);
mathWrite(*stream, mObjScale);
// Write the polyhedron
stream->write(mTriggerPolyhedron.pointList.size());
for (i = 0; i < mTriggerPolyhedron.pointList.size(); i++)
mathWrite(*stream, mTriggerPolyhedron.pointList[i]);
stream->write(mTriggerPolyhedron.planeList.size());
for (i = 0; i < mTriggerPolyhedron.planeList.size(); i++)
mathWrite(*stream, mTriggerPolyhedron.planeList[i]);
stream->write(mTriggerPolyhedron.edgeList.size());
for (i = 0; i < mTriggerPolyhedron.edgeList.size(); i++) {
const Polyhedron::Edge& rEdge = mTriggerPolyhedron.edgeList[i];
stream->write(rEdge.face[0]);
stream->write(rEdge.face[1]);
stream->write(rEdge.vertex[0]);
stream->write(rEdge.vertex[1]);
}
return retMask;
}
void Trigger::unpackUpdate(NetConnection* con, BitStream* stream)
{
Parent::unpackUpdate(con, stream);
U32 i, size;
MatrixF temp;
Point3F tempScale;
Polyhedron tempPH;
// Transform
stream->readAffineTransform(&temp);
mathRead(*stream, &tempScale);
// Read the polyhedron
stream->read(&size);
tempPH.pointList.setSize(size);
for (i = 0; i < tempPH.pointList.size(); i++)
mathRead(*stream, &tempPH.pointList[i]);
stream->read(&size);
tempPH.planeList.setSize(size);
for (i = 0; i < tempPH.planeList.size(); i++)
mathRead(*stream, &tempPH.planeList[i]);
stream->read(&size);
tempPH.edgeList.setSize(size);
for (i = 0; i < tempPH.edgeList.size(); i++) {
Polyhedron::Edge& rEdge = tempPH.edgeList[i];
stream->read(&rEdge.face[0]);
stream->read(&rEdge.face[1]);
stream->read(&rEdge.vertex[0]);
stream->read(&rEdge.vertex[1]);
}
setTriggerPolyhedron(tempPH);
setScale(tempScale);
setTransform(temp);
}